Gerroidea

Gerroidea is a superfamily of semiaquatic bugs in the order Hemiptera. There are at least 3 families and more than 2,000 described species in Gerroidea.

Families
These three families belong to the superfamily Gerroidea:
 * Gerridae Leach, 1815 (water striders)
 * Hermatobatidae Coutière & Martin, 1901
 * Veliidae Amyot & Serville, 1843 (smaller water striders or riffle bugs)